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參數(shù)資料
| 型號(hào)： | M41ST84 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 5.0 OR 3.0V, 512 bit (64 x 8) Serial RTC with supervisory functions(具有監(jiān)控功能的5.0V或3.0V，512位(64 x 8)串行RTC) |
| 中文描述： | 5.0或3.0V，512位（64 × 8）（具有監(jiān)控功能的5.0V或3.0V，512位（64 × 8）串行時(shí)鐘監(jiān)督職能的串行時(shí)鐘） |
| 文件頁數(shù)： | 8/31頁 |
| 文件大?。?/td> | 181K |
| 代理商： | M41ST84 |
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M41ST84Y, M41ST84W
8/31
Table 5. DC Characteristics
Note: 1. Valid for Ambient Operating Temperature: T
A
= –40 to 85
°
C; V
CC
= 2.7 to 3.6V or 4.5 to 5.5V (except where noted).
2. RSTIN internally pulled-up to V
CC
through 100K
resistor. WDI internally pulled-down to V
SS
through 100K
resistor.
3. Outputs deselected.
4. For PFO and SQW pins (CMOS).
5. For IRQ/FT/OUT, RSTpins (Open Drain): ifpulled-up to supply other thanV
CC
, thissupply mustbe equal to, or less than 3.0V when
V
CC
= 0V (during battery back-up mode).
6. For rechargeable back-up, V
BAT
(max) may be considered V
CC
.
Table 6. Crystal Electrical Characteristics (Externally Supplied)
Note: 1. Load capacitors are integrated withinthe M41ST84Y/W. Circuit board layout considerations for the 32.768 kHz crystal of minimum
trace lengths and isolation from RF generating signals should be taken into account.
2. STMicroelectronics recommends the KDS DT-38: 1TA/1TC252E127, Tuning Fork Type (thru-hole) or the DMX-26S:
1TJS125FH2A212, (SMD) quartz crystal for industrial temperature operations. KDS can be contacted at kouhou@kdsj.co.jp or ht-
tp://www.kdsj.co.jp forfurther information on this crystal type.
Sym
Parameter
Test
Condition
(1)
M41ST84Y
M41ST84W
Unit
Min
Typ
Max
Min
Typ
Max
I
BAT
Battery Current OSC
ON
T
A
= 25
°
C,
V
CC
= 0V,
V
BAT
= 3V
400
500
400
500
nA
Battery Current OSC
OFF
50
50
nA
I
CC1
Supply Current
f = 400kHz
1.4
0.75
mA
I
CC2
Supply Current
(Standby)
SCL, SDA =
V
CC
– 0.3V
1
0.50
mA
I
LI(2)
Input Leakage Current
0V
≤
V
IN
≤
V
CC
±
1
±
1
μ
A
Input Leakage Current
(PFI)
–25
2
25
–25
2
25
nA
I
LO(3)
Output Leakage
Current
0V
≤
V
OUT
≤
V
CC
±
1
±
1
μ
A
V
IH
Input High Voltage
0.7V
CC
V
CC
+ 0.3
0.7V
CC
V
CC
+ 0.3
V
V
IL
Input Low Voltage
–0.3
0.3V
CC
–0.3
0.3V
CC
V
V
BAT
Battery Voltage
2.5
3.0
3.5
(6)
2.5
3.0
3.5
(6)
V
V
OH
Output High Voltage
(4)
I
OH
= –1.0mA
2.4
2.4
V
V
OL
Output Low Voltage
I
OL
= 3.0mA
0.4
0.4
V
Output Low Voltage
(Open Drain)
(5)
I
OL
= 10mA
0.4
0.4
V
V
PFD
Power Fail Deselect
4.20
4.40
4.50
2.55
2.60
2.70
V
V
PFI
PFI Input Threshold
V
CC
= 5V(Y)
V
CC
= 3V(V)
1.225
1.250
1.275
1.225
1.250
1.275
V
PFI Hysteresis
PFI Rising
20
70
20
70
mV
V
SO
Battery Back-up
Switchover
2.5
2.5
V
Symbol
Parameter
(1,2)
Typ
Min
Max
Unit
f
0
Resonant Frequency
32.768
kHz
R
S
Series Resistance
50
k
C
L
Load Capacitance
12.5
pF
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| M41ST84W | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.0V, 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS |
| M41ST84W_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.0/3.3 V I2C serial RTC with 44 bytes of NVRAM and supervisory functions |
| M41ST84WMH | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.0V, 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS |
| M41ST84WMH1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.0V, 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS |
| M41ST84WMH1TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.0V, 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS |
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